The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1989
Filed:
Dec. 16, 1987
Taizo Akimoto, Minami-Ashigara, JP;
Mikio Nishiyama, Minami-Ashigara, JP;
Yoshiyuki Yazawa, Minami-Ashigara, JP;
Hirohumi Ohnishi, Minami-Ashigara, JP;
Fuji Photo Equipment Co., Ltd., Kanagawa, JP;
Abstract
A synchronizing signal generating circuit is incorporated in a digital image storing device. When a plurality of video signals composed of different numbers of scanning lines and issued from television cameras of different types of various diagnostic apparatus are converted from analog to digital signals and stored per frame in an image memory in the digital image storing apparatus, sampling pulses for an A/D converter which are synchronous with the horizontal synchronizing signals of the video signals and field discriminating signals relative to odd-numbered fields and even-numbered fields, among composite synchronizing signals, are generated by using an N-multiplier including an equalizing pulse remover controlled by an F/V converter and a field discriminating circuit with a field discriminating time constant being automatically controlled by the F/V converter. The video signals are stored per frame in the image memory on a real-time basis by utilizing the sampling pulses and the field discriminating signal.